<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>图片插入</title>
</head>
<body>
    <img src="2.jpg" alt="图片">
    <br>
    <img src="img/1.jpg">
    <br>
    <img src="../3.jpg" title="看我鸽鸽的冲击波">
</body>
</html>